threshold field

例句：

1. 1. The threshold field between thetwo cultures is very thin.
   两种文化之间的门槛领域非常狭窄。
2. 2. This threshold field is wherethe two worlds meet.
   这个门槛领域是两种世界交汇的地方。
3. 3. The researchershave identified a new thresholdfield for disease resistance.
   研究人员已经发现了一种新的疾病抵抗力门槛领域。